Water Network Synthesis for Mixed Batch-Continuous Processes

This paper presents a mixed-integer nonlinear programming (MINLP) mathematical model for optimizing water re-use and regeneration re-use in batch-continuous processes. This model is based on a design method developed by Kim and Smith (2004) and performs efficient integration of discontinuous water-using operations, and continuous wastewater streams with low contaminant concentrations (with or without storage tanks for continuous streams). In addition, synthesis of batch and/or continuous local wastewater treatment system can be performed simultaneously. The developed model was applied on industrial case study, at a Brewery. © 2009 Elsevier B.V. All rights reserved